GTAC Observation Log

1. Date : 23/10/2016
2. Observation Sr. No. : 8935
3. Observer : Mayuresh Surnis

4. Observer's Email : msurnis@gmail.com,mpsurnis@ncra.tifr.res.in
5. Project Name : Deep Low Frequency Observations to Investigate Spectral Turnovers in Pulsars Discovered with the GMRT \r\n
6. Project Code : 31_077
7. Operator(s) : Pramod, Sachin
8. Command File : /odisk/gtac/cmd
9. LTA File : /gsbifrdata1/22oct/u31_077_22oct2016.lta
10. LogFlag File : /odisk/online1/logflags/31_077.FLAGS.2, /odisk/online1/logflags/31_077.FLAGS.1

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,ON, IF-CH2 : 4+14 dB, 16 MHz,ON

GSB SETTINGS :

14. GSB Host : gsbm1_shivneri
15. GSB Mode : Realtime
16. GSB LTA : 8
17. GSB CTRL : ONLINE
18. GSB Fstop : ON
19. GAIN EQ : ON
20. Stokes : Total_Intensity
21. Beam - 1 : OFF
22. Beam - 2 : PA
23. ACQ BW : 16.666666 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 256
26. Channel Numbers : 0:255:1
27. LO5 -1  : 138
28. LO5 -2  : 167

29. Frequency Parameters (TPA) : 156 156 218 218 62 62
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :30

32. Name of Non-Working Antennas (with reason for each) :

33. Note for Backup :

34. Start and End Time of Obs.(IST): 22 Oct 2016 18:00:00 - 23 Oct 2016 00:00:00

35. ONLINE Machine : Lenyadri

36. No of Antennas Working(Fringing) at the end :30

37. Comments (During Observations) :
Antennas selected in GAC : Cent. square +1 arm antennas = 17
18:00 : Started set up.
18:20 : Power equalized on 1830-360.
Halt the GSB and restarted with gain ON.
---------------------------------------------------------
18:23 : Phasing done on 1830-360.
18:25:07 : Started scan on 1822-096 for ~ 5.3687 min.
18:40:49 : Started scan on J1838+1523 for ~ 60.1295 min.
19:43:49 : Started scan on 1822-096 for ~ 4.83183 min.
19:54:47 : Started scan on 3C468.1 for ~ 0.53687 min.
19:55:54 : Started scan on 3C468.1 for ~ 4.83183 min.
20:02:21 : Started scan on J2208+5500 for ~ 59.861 min.
21:03:42 : Started scan on 3C468.1 for ~ 0.805306 min.
21:04:40 : Started scan on 3C468.1 for ~ 4.83183 min.
21:10:42 : Started scan on J2217+5733 for ~ 59.5926 min.
22:11:51 : Started scan on 3C468.1 for ~ 0.805306 min.
22:12:59 : Started scan on 3C468.1 for ~ 4.83183 min.
22:19:10 : Started scan on J0026+6320 for ~ 59.861 min.
23:20:10 : Started scan on 3C468.1 for ~ 4.83183 min.
23:27:18 : Started scan on 3C48 for ~ 12.8849 min.
23:45 : Stopped observation session.